My story with two mysterious sounds:
A few days ago, I was really conscious and present. As I went to bed I wasn't that present but I suddenly heard a sound in my left ear. It was vibrating and relatively high, a few times i heard the sound in the middle of my face, then in the direction of my right ear, and then it bounced back. It sounded a bit like a midge caught in my ear, but I didn't feel anything inside of it. A few minutes later I heard a second sound, vibrating and still higher and it seemed to come from above, like from the ceiling. The sounds lasted always some seconds, went away, started again, there was no rule and they were not fading. When I began to day-dream it began slowly to disappear. I've never heard such a tone, at this day there was nothing perticular loud, and I haven't heard it since then. I wonder what it could have been!